Can I enter a percentage amount to withhold from each cheque in the "Additional Tax" field or only a dollar amount?

Hey AngVL,

Thanks for reaching out to us here. Being able to withhold the right amount of taxes for each pay is important. I can provide some information about taxes.

In QuickBooks Desktop there is currently only the option to add Dollar amounts. You would need to manually calculate the percentage and then add the dollar amount into QuickBooks. I can see how this feature would be beneficial for you. I recommend leaving feedback. To send feedback, Go to the Help menu at the top. Select Send Feedback Online. 

If you have any other questions, feel free to reach out here.